CN214175082U - Communication interface concentrator - Google Patents
Communication interface concentrator Download PDFInfo
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- CN214175082U CN214175082U CN202023347140.6U CN202023347140U CN214175082U CN 214175082 U CN214175082 U CN 214175082U CN 202023347140 U CN202023347140 U CN 202023347140U CN 214175082 U CN214175082 U CN 214175082U
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Abstract
本实用新型涉及有线通信领域，具体涉及一种通信接口集线器，包括：集线器主体；主机接口，设置在所述集线器主体上，所述主机接口用于连接主机；至少两个设备接口，设置在所述集线器主体上，每个所述设备接口具有不同的位置标识，所述位置标识用于正确识别出各个所述设备接口所连接的设备。各个设备接口具有不同的位置标识，主机可通过识别各个设备接口的位置标识来对所连接的外部设备进行正确识别，从而避免了需修改各个外部设备通信地址的麻烦，同时也避免了因通信地址相同而导致的通信冲突。
The utility model relates to the field of wired communication, in particular to a communication interface hub, comprising: a hub body; a host interface, which is arranged on the hub body, and the host interface is used to connect a host; at least two device interfaces are arranged on the On the main body of the hub, each of the device interfaces has a different location identifier, and the location identifier is used to correctly identify the device connected to each of the device interfaces. Each device interface has different location identifiers, and the host can correctly identify the connected external devices by identifying the location identifiers of each device interface, thus avoiding the trouble of modifying the communication address of each external device, and also avoiding the need for communication addresses. Communication conflicts caused by the same.
Description
Technical Field
The utility model relates to a wired communication field, concretely relates to communication interface concentrator.
Background
With the large-scale popularization of the application of the internet of things, many applications need to be connected with many different sensors. The traditional industrial field sensors are mature, the interfaces of the sensors are various, such as RS232, RS485, RS422 and the like, wherein the RS485 interface is the most commonly used interface, and the sensors with the interfaces are abundant in types and low in price.
The RS485 bus is a half-duplex bus, has bidirectional communication capability and supports a plurality of external devices connected in parallel, the plurality of external devices need to follow a fixed address access rule when communicating with a host, and a similar communication protocol is most widely used as a ModBus communication protocol.
In practical application, when a plurality of external devices are connected to the same RS485 bus, each external device needs to use different addresses, and if the addresses conflict, each external device cannot be distinguished, so that normal communication cannot be achieved. Therefore, when a plurality of external devices are connected, different communication addresses need to be modified for each external device, and the external devices purchased from different suppliers need professionals to modify the addresses each time the external devices are installed and replaced, which causes great troubles.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that leads to inconvenience because of possessing a plurality of communication addresses among the prior art to provide a communication interface concentrator, include:
a hub main body;
the host interface is arranged on the concentrator main body and is used for connecting a host;
the hub comprises a hub main body, at least two equipment interfaces arranged on the hub main body, wherein each equipment interface has different position marks, and the position marks are used for correctly identifying the equipment connected with each equipment interface.
Preferably, a plurality of the device interfaces are arranged on the hub main body in sequence.
Preferably, the number of the device interfaces is eight.
Preferably, the hub main body includes a power supply module including a power supply interface.
Preferably, the hub main body includes a control module for communication forwarding between the host interface and the device interface.
Preferably, the hub main body further comprises a level conversion module for IO level conversion of the communication bus and the control module.
Preferably, a fixing portion is provided on the hub main body.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an among the communication interface concentrator, each equipment interface has different position identification, and the position identification of host computer accessible discernment each equipment interface comes to carry out correct discernment to the external equipment who connects, has avoided needing to modify each external equipment communication address's trouble, has avoided leading to the communication conflict because of communication address is the same simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication interface hub in embodiment 1 of the present invention;
fig. 2 is an internal block diagram of the communication interface hub according to embodiment 1 of the present invention.
Description of reference numerals:
10. a hub; 101. a power interface; 1011. a power supply wiring terminal; 102. a host interface; 1021. a host wiring terminal; 103. a fixed part; 104. an equipment interface; 105. a hub main body; 1041. a device wiring terminal; 201. a control module; 202. a level conversion module; 203. and a power supply module.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In the field of application of the internet of things, there are many interfaces of the sensor in communication transmission, such as RS232, RS485, RS422, and the like, and in the following embodiments, the interface of RS485 is taken as an example for description. It should be noted that the communication interface hub provided in this embodiment is also applicable to other types of interfaces.
Example 1
The present embodiment provides a communication interface hub 10, as shown in fig. 1, including a hub main body 105, a host interface 102 and at least two device interfaces 104, the host interface 102 is disposed on the hub main body 105, and an RS485 signal cable of a host (not shown) is connected to the communication interface hub 10 through the host interface 102.
At least two device interfaces 104 are provided on the hub body 105, each device interface 104 having a different location identification that can be used to correctly identify the device to which the respective device interface is connected. When a plurality of external devices (for example, different types of sensors having RS485 interfaces) are connected to each device interface 104, the device connected to each device interface 104 is input to the host in advance, and because the location identifiers of each device interface 104 are different, the host can communicate through the location identifiers of each interface 104 and the input external devices corresponding to each device interface 104, so that communication can be performed without modifying the communication addresses of each external device, and communication conflicts caused by the same communication addresses are avoided.
In the above embodiment, each device interface 104 has a different location identifier, and the host can correctly identify the connected external device by identifying the location identifier of each device interface 104, thereby avoiding the trouble of modifying the communication address of each external device, and avoiding communication conflicts caused by the same communication address.
As shown in fig. 1, a plurality of device interfaces 104 are sequentially and intermittently arranged on a sidewall of the hub main body 105, the device interfaces 104 being located on the opposite side of the hub main body 105 from the host interface 102. In this embodiment, the number of the device interfaces 104 is eight, that is, the eight device interfaces 104 can be respectively connected to eight external devices having RS485 interfaces. In some embodiments, the number of the device interfaces 104 may be ten, five, seven, etc., and the number of the device interfaces 104 may be set by those skilled in the art as appropriate according to specific situations, and is not limited herein.
As shown in fig. 1 and 2, the hub main body 105 includes a power supply module 203, the power supply module 203 includes a power supply interface 101, the power supply interface 101 is disposed on the hub main body 105, and the power supply interface 101 can be inserted into an external power supply to supply power to the communication interface hub 10, and can also supply power to an external device connected to the device interface 104. In some embodiments, the hub body 105 may also employ a battery to power the communication interface hub 10 and external devices connected to the device interface 104.
As shown in fig. 1 and 2, a host connection terminal 1021 is disposed at a position corresponding to the host interface 102 in the hub main body 105, a power connection terminal 1011 is disposed at a position corresponding to the power interface 101 in the hub main body 105, and an equipment connection terminal 1041 is disposed at a position corresponding to the equipment interface 104 in the hub main body 105, and the host wire, the power wire, and the equipment wire can be respectively communicated with the communication interface hub 10 through the host connection terminal 1021, the power connection terminal 1011, and the equipment connection terminal 1041. In some embodiments, protective covers (not shown) may be disposed at the host interface 102, the power interface 101, and the device interface 104 to prevent dust, water droplets, etc. from entering the communication interface hub 10 and damaging the communication interface hub 10.
As shown in fig. 2, which illustrates functional modules provided for implementing the functions of the present embodiment, the hub main body 105 includes a control module 201, and the control module 201 can be used for communication forwarding between the host interface 102 and the device interface 104. When the host interface 102 is connected to a host and the device interface 104 is connected to an external device, the control module 201 may be used to implement forwarding of a communication protocol between the host and the device. In the present embodiment, the control module 201 is a Micro Controller (MCU) that controls the communication interface hub 10.
The hub main body 105 further includes a level shift module 202, one level shift module 202 is corresponding to each of the host interface 102 and the device interfaces 104, and the level shift module 202 can be used for IO level shift common to the communication bus and the control module 201. In this embodiment, the number of the device interfaces 104 is eight, and the device interfaces 104 can connect eight devices, each of which can communicate with the host. In the communication process, the control module 201 is used to implement forwarding of a communication protocol between a host and a device, and the level conversion module 202 is used to perform IO level conversion on a communication bus and the control module 201.
In order to fix the communication interface hub 10, the hub main body 105 is provided with a fixing portion 103, the fixing portion 103 may be a through hole, and the communication interface hub 10 may be fixed by a screw, a pin, or the like, and in some embodiments, the communication interface hub 10 may also be fixed by a double-sided tape, glue, or the like.
For the problem when a plurality of devices with RS485 interfaces need to be connected, the present embodiment provides a communication interface hub 10, where the communication interface hub 10 implements a function similar to a network hub by combining software and hardware, and implements master-slave communication without address differentiation by using address mapping and data packet methods. In the communication mode, the communication addresses of the slave devices do not need to be distinguished, so that communication of any address or even any protocol is realized. A plurality of devices can be connected to the communication interface hub 10 at the same time to complete communication like ethernet devices without modifying communication addresses, thereby reducing unnecessary troubles and avoiding communication conflicts caused by the same communication addresses.
The communication interface hub 10 provided by this embodiment can also realize more connections with similar RS485 interface devices in a cascading manner, thereby greatly reducing technical difficulties in field use, construction and replacement of multiple parallel devices.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023347140.6U CN214175082U (en) | 2020-12-31 | 2020-12-31 | Communication interface concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023347140.6U CN214175082U (en) | 2020-12-31 | 2020-12-31 | Communication interface concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214175082U true CN214175082U (en) | 2021-09-10 |
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| CN202023347140.6U Active CN214175082U (en) | 2020-12-31 | 2020-12-31 | Communication interface concentrator |
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| CN (1) | CN214175082U (en) |
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- 2020-12-31 CN CN202023347140.6U patent/CN214175082U/en active Active
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Effective date of registration: 20230705 Address after: Room 209, Building 1, No. 189 Zhangji Road, Small and Medium Enterprise Park, Kunshan Development Zone, Suzhou City, Jiangsu Province, 215000 Patentee after: Zhongke xinruilian technology information (Suzhou) Co.,Ltd. Patentee after: Shanxi Boxiang Tiancheng Technology Co.,Ltd. Address before: 215000 room 209, Shishan Street office building, building 1, No. 109, Dengwei Road, high tech Zone, Suzhou, Jiangsu Province Patentee before: Zhongke xinruilian technology information (Suzhou) Co.,Ltd. |
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Effective date of registration: 20241125 Address after: 030000 North Floor, Building 3, No. 239 Changzhi Road, Taiyuan Xuefu Park, Taiyuan Comprehensive Reform Demonstration Zone, Shanxi Province Patentee after: Shanxi Boxiang Tiancheng Technology Co.,Ltd. Country or region after: China Address before: Room 209, Building 1, No. 189 Zhangji Road, Small and Medium Enterprise Park, Kunshan Development Zone, Suzhou City, Jiangsu Province, 215000 Patentee before: Zhongke xinruilian technology information (Suzhou) Co.,Ltd. Country or region before: China Patentee before: Shanxi Boxiang Tiancheng Technology Co.,Ltd. |
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Effective date of registration: 20260317 Address after: 314000 Zhejiang Province Jiaxing City Nanhu District Asia-Pacific Road 778 (Jiaxing Science and Technology Town) Building 5 Patentee after: Jiaxing Zhongke Internet of Things Engineering Technology Center Country or region after: China Address before: 030000 North Floor, Building 3, No. 239 Changzhi Road, Taiyuan Xuefu Park, Taiyuan Comprehensive Reform Demonstration Zone, Shanxi Province Patentee before: Shanxi Boxiang Tiancheng Technology Co.,Ltd. Country or region before: China |
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